Choose between three sizes for the database: small, medium, or large. Verify the character set is WE8ISO8859P1.

Instance Information

Enter in the name of the database, the System Identification (4 characters), the file location and name of the initialization file, and the internal user password and confirmed password.

Control Files

Enter the name and location for the control files. Specify the maximum number of datafiles, maximum number of logfiles, and maximum number of log members. I prefer three as a number of the maximum log members.

Initial Tablespace Information

Every Oracle Database need as minimum of the following tablespaces: user (a tablespace container for tables,views,snapshots), index (a tablespace container
for indexes and primary key constraints), tmp (a tablespace container for sorting records), rb (a tablespace container for the rollback segments), and sys ( the system tablespace).
For each tablespace specify: the location of the datafile and size, the initial extent size, the next extent size, the minimum number of extents, the maximum number of extents, or unlimited extents.

Redo Log Information

To activate archiving check the archive log option. Specify the destination of the archive directory.

SGA Information

Select the defaults. Later change the parameters after analyzing system statistics. Leave this section to the pros.

Trace Director Information

Specify the Trace File Directory and the User Process Directory.

Create the Database Now

Press the previous button may reset some of the fields. You will notice which
fields are reset to default values as you move forward.